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<topic id="topic1" xml:lang="en"><title id="fe138336">gp_global_sequence</title><body><p>The <codeph>gp_global_sequence</codeph> table contains the log sequence number position in the
      transaction log, which is used by the file replication process to determine the file blocks to
      replicate from a primary to a mirror segment.</p><table id="fe138428"><title>pg_catalog.gp_global_sequence</title><tgroup cols="4"><colspec colnum="1" colname="col1" colwidth="131pt"/><colspec colnum="2" colname="col2" colwidth="97pt"/><colspec colnum="3" colname="col3" colwidth="82pt"/><colspec colnum="4" colname="col4" colwidth="138pt"/><thead><row><entry colname="col1">column</entry><entry colname="col2">type</entry><entry colname="col3">references</entry><entry colname="col4">description</entry></row></thead><tbody><row><entry colname="col1"><codeph>sequence_num</codeph></entry><entry colname="col2">bigint</entry><entry colname="col3"/><entry colname="col4">Log sequence number position in the transaction log</entry></row></tbody></tgroup></table></body></topic>